Montagu House

Montagu House was a mansion in Westminster, London, England. John Montagu purchased the former site of the Archbishop of York's London residence and built himself a modest mansion, which was, in the late 1850s, replaced with one of the grandest private mansions in London. In 1917, the house was taken over for use as government offices, and it was demolished from 1949 to 1950. The site now forms the southern half of the Ministry of Defense building.